diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml index 8d5138d..c47d1be 100644 --- a/.github/workflows/coverage.yml +++ b/.github/workflows/coverage.yml @@ -23,6 +23,7 @@ jobs: - "config" - "generate" - "log" + - "trace" runs-on: ubuntu-latest steps: diff --git a/.github/workflows/trace-ci.yml b/.github/workflows/trace-ci.yml new file mode 100644 index 0000000..54ab514 --- /dev/null +++ b/.github/workflows/trace-ci.yml @@ -0,0 +1,31 @@ +name: "trace-ci" + +on: + push: + branches: + - "feat**" + - "fix**" + - "hotfix**" + - "chore**" + paths: + - "trace/**.go" + - "trace/go.mod" + - "trace/go.sum" + pull_request: + types: + - opened + - synchronize + - reopened + branches: + - main + paths: + - "trace/**.go" + - "trace/go.mod" + - "trace/go.sum" + +jobs: + ci: + uses: ./.github/workflows/common-ci.yml + secrets: inherit + with: + module: "trace" diff --git a/release-please-config.json b/release-please-config.json index 42325f6..4536966 100644 --- a/release-please-config.json +++ b/release-please-config.json @@ -15,6 +15,11 @@ "release-type": "go", "component": "log", "tag-separator": "/" + }, + "trace": { + "release-type": "go", + "component": "trace", + "tag-separator": "/" } } } diff --git a/trace/.golangci.yml b/trace/.golangci.yml new file mode 100644 index 0000000..beb045a --- /dev/null +++ b/trace/.golangci.yml @@ -0,0 +1,65 @@ +run: + timeout: 5m + concurrency: 8 + +linters: + enable: + - asasalint + - asciicheck + - bidichk + - bodyclose + - containedctx + - contextcheck + - cyclop + - decorder + - dogsled + - durationcheck + - errcheck + - errchkjson + - errname + - errorlint + - exhaustive + - forbidigo + - forcetypeassert + - gocognit + - goconst + - gocritic + - gocyclo + - godot + - godox + - gofmt + - goheader + - gomoddirectives + - gomodguard + - goprintffuncname + - gosec + - gosimple + - govet + - grouper + - importas + - ineffassign + - interfacebloat + - logrlint + - maintidx + - makezero + - misspell + - nestif + - nilerr + - nilnil + - nlreturn + - nolintlint + - nosprintfhostport + - prealloc + - predeclared + - promlinter + - reassign + - staticcheck + - tenv + - thelper + - tparallel + - typecheck + - unconvert + - unparam + - unused + - usestdlibvars + - whitespace diff --git a/trace/README.md b/trace/README.md new file mode 100644 index 0000000..931fac0 --- /dev/null +++ b/trace/README.md @@ -0,0 +1,378 @@ +# Trace Module + +[![ci](https://github.com/ankorstore/yokai/actions/workflows/trace-ci.yml/badge.svg)](https://github.com/ankorstore/yokai/actions/workflows/trace-ci.yml) +[![go report](https://goreportcard.com/badge/github.com/ankorstore/yokai/trace)](https://goreportcard.com/report/github.com/ankorstore/yokai/trace) +[![codecov](https://codecov.io/gh/ankorstore/yokai/graph/badge.svg?token=5s0g5WyseS&flag=trace)](https://app.codecov.io/gh/ankorstore/yokai/tree/main/trace) +[![PkgGoDev](https://pkg.go.dev/badge/github.com/ankorstore/yokai/trace)](https://pkg.go.dev/github.com/ankorstore/yokai/trace) + +> Tracing module based on [OpenTelemetry](https://github.com/open-telemetry/opentelemetry-go). + + + +* [Installation](#installation) +* [Documentation](#documentation) + * [Configuration](#configuration) + * [Usage](#usage) + * [Context](#context) + * [Span processors](#span-processors) + * [Noop span processor](#noop-span-processor) + * [Stdout span processor](#stdout-span-processor) + * [OTLP gRPC span processor](#otlp-grpc-span-processor) + * [Test span processor](#test-span-processor) + * [Samplers](#samplers) + * [Parent based always on](#parent-based-always-on) + * [Parent based always off](#parent-based-always-off) + * [Parent based trace id ratio](#parent-based-trace-id-ratio) + * [Always on](#always-on) + * [Always off](#always-off) + * [Trace id ratio](#trace-id-ratio) + + + +## Installation + +```shell +go get github.com/ankorstore/yokai/trace +``` + +## Documentation + +### Configuration + +Since The `TracerProviderFactory` use +the [resource.Default()](https://pkg.go.dev/go.opentelemetry.io/otel/sdk/resource#Default) by default, you can use: + +- `OTEL_SERVICE_NAME` env variable to configure your tracing service name +- `OTEL_RESOURCE_ATTRIBUTES` env variable to configure your resource attributes + +### Usage + +This module provides a [TracerProviderFactory](factory.go), allowing to set up a `TracerProvider` easily. + +```go +package main + +import ( + "github.com/ankorstore/yokai/trace" + "go.opentelemetry.io/otel/sdk/resource" +) + +func main() { + tp, _ := trace.NewDefaultTracerProviderFactory().Create() + + // equivalent to + tp, _ = trace.NewDefaultTracerProviderFactory().Create( + trace.Global(true), // set the tracer provider as global + trace.WithResource(resource.Default()), // use the default resource + trace.WithSampler(trace.NewParentBasedAlwaysOnSampler()), // use parent based always on sampling + trace.WithSpanProcessor(trace.NewNoopSpanProcessor()), // use noop processor (void trace spans) + ) +} +``` + +See available [factory options](option.go). + +#### Context + +This module provides the `CtxTracerProvider()` function that allow to extract the tracer provider from +a `context.Context`. + +If no tracer provider is found in context, +the [global tracer](https://github.com/open-telemetry/opentelemetry-go/blob/main/trace.go) will be used. + +#### Span processors + +This modules comes with 4 `SpanProcessor` ready to use: + +- `Noop`: to async void traces (default) +- `Stdout`: to async print traces to the standard output +- `OtlpGrpc`: to async send traces to [OTLP/gRPC](https://opentelemetry.io/docs/specs/otlp/#otlpgrpc) collectors ( + ex: [Jaeger](https://www.jaegertracing.io/), [Grafana](https://grafana.com/docs/tempo/latest/configuration/grafana-agent/#grafana-agent), + etc.) +- `Test`: to sync store traces in memory (for testing assertions) + +##### Noop span processor + +```go +package main + +import ( + "context" + + "github.com/ankorstore/yokai/trace" +) + +func main() { + tp, _ := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSpanProcessor(trace.NewNoopSpanProcessor()), + ) + + // voids trace span + _, span := tp.Tracer("default").Start(context.Background(), "my span") + defer span.End() +} +``` + +##### Stdout span processor + +```go +package main + +import ( + "context" + + "github.com/ankorstore/yokai/trace" + "go.opentelemetry.io/otel/exporters/stdout/stdouttrace" +) + +func main() { + tp, _ := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSpanProcessor(trace.NewStdoutSpanProcessor(stdouttrace.WithPrettyPrint())), + ) + + // pretty prints trace span to stdout + _, span := tp.Tracer("default").Start(context.Background(), "my span") + defer span.End() +} +``` + +##### OTLP gRPC span processor + +```go +package main + +import ( + "context" + + "github.com/ankorstore/yokai/trace" +) + +func main() { + ctx := context.Background() + + conn, _ := trace.NewOtlpGrpcClientConnection(ctx, "jaeger:4317") + proc, _ := trace.NewOtlpGrpcSpanProcessor(ctx, conn) + + tp, _ := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSpanProcessor(proc), + ) + + // sends trace span to jaeger:4317 + _, span := tp.Tracer("default").Start(ctx, "my span") + defer span.End() +} +``` + +##### Test span processor + +```go +package main + +import ( + "context" + "fmt" + + "github.com/ankorstore/yokai/trace" + "github.com/ankorstore/yokai/trace/tracetest" +) + +func main() { + ex := tracetest.NewDefaultTestTraceExporter() + + tp, _ := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSpanProcessor(trace.NewTestSpanProcessor(ex)), + ) + + // sends trace span to test exporter + _, span := tp.Tracer("default").Start(context.Background(), "my span") + defer span.End() + + // check + fmt.Printf("has span: %v", ex.HasSpan("my span")) // has span: true +} +``` + +You can use the provided [test assertion helpers](tracetest/assert.go) in your tests: + +- `AssertHasTraceSpan`: to assert on exact name and exact attributes match +- `AssertHasNotTraceSpan`: to assert on exact name and exact attributes non match +- `AssertContainTraceSpan`: to assert on exact name and partial attributes match +- `AssertContainNotTraceSpan`: to assert on exact name and partial attributes non match + +```go +package main_test + +import ( + "context" + "testing" + + "github.com/ankorstore/yokai/trace" + "github.com/ankorstore/yokai/trace/tracetest" + "go.opentelemetry.io/otel/attribute" +) + +func TestTracer(t *testing.T) { + ex := tracetest.NewDefaultTestTraceExporter() + + tp, _ := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSpanProcessor(trace.NewTestSpanProcessor(ex)), + ) + + // sends trace span to test exporter + _, span := tp.Tracer("default").Start( + context.Background(), + "my span", + attribute.String("string attr name", "string attr value"), + attribute.Int("int attr name", 42), + ) + span.End() + + // assertion success + tracetest.AssertHasTraceSpan( + t, + ex, + "my span", + attribute.String("string attr name", "string attr value"), + attribute.Int("int attr name", 42), + ) + + // assertion success + tracetest.AssertHasNotTraceSpan( + t, + ex, + "my span", + attribute.String("string attr name", "string attr value"), + attribute.Int("int attr name", 24), + ) + + // assertion success + tracetest.AssertContainTraceSpan( + t, + ex, + "my span", + attribute.String("string attr name", "attr value"), + attribute.Int("int attr name", 42), + ) + + // assertion success + tracetest.AssertContainNotTraceSpan( + t, + ex, + "my span", + attribute.String("string attr name", "attr value"), + attribute.Int("int attr name", 24), + ) +} +``` + +#### Samplers + +This modules comes with 6 `Samplers` ready to use: + +- `ParentBasedAlwaysOn`: always on depending on parent (default) +- `ParentBasedAlwaysOff`: always off depending on parent +- `ParentBasedTraceIdRatio`: trace id ratio based depending on parent +- `AlwaysOn`: always on +- `AlwaysOff`: always off +- `TraceIdRatio`: trace id ratio based + +Note: parent based samplers returns a composite sampler which behaves differently, based on the parent of the span: + +- if the span has no parent, the embedded sampler is used to make sampling decision +- if the span has a parent, it depends on whether the parent is remote and whether it is sampled + +##### Parent based always on + +```go +package main + +import ( + "github.com/ankorstore/yokai/trace" +) + +func main() { + tp, _ := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSampler(trace.NewParentBasedAlwaysOnSampler()), + ) +} +``` + +##### Parent based always off + +```go +package main + +import ( + "github.com/ankorstore/yokai/trace" +) + +func main() { + tp, _ := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSampler(trace.NewParentBasedAlwaysOffSampler()), + ) +} +``` + +##### Parent based trace id ratio + +```go +package main + +import ( + "github.com/ankorstore/yokai/trace" +) + +func main() { + tp, _ := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSampler(trace.NewParentBasedTraceIdRatioSampler(0.5)), + ) +} +``` + +##### Always on + +```go +package main + +import ( + "github.com/ankorstore/yokai/trace" +) + +func main() { + tp, _ := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSampler(trace.NewAlwaysOnSampler()), + ) +} +``` + +##### Always off + +```go +package main + +import ( + "github.com/ankorstore/yokai/trace" +) + +func main() { + tp, _ := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSampler(trace.NewAlwaysOffSampler()), + ) +} +``` + +##### Trace id ratio + +```go +package main + +import ( + "github.com/ankorstore/yokai/trace" +) + +func main() { + tp, _ := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSampler(trace.NewTraceIdRatioSampler(0.5)), + ) +} +``` diff --git a/trace/context.go b/trace/context.go new file mode 100644 index 0000000..1271af6 --- /dev/null +++ b/trace/context.go @@ -0,0 +1,29 @@ +package trace + +import ( + "context" + + "go.opentelemetry.io/otel" + "go.opentelemetry.io/otel/trace" +) + +// CtxKey is a contextual struct key. +type CtxKey struct{} + +// WithContext appends to a given context a [OTEL TracerProvider]. +// +// [OTEL TracerProvider]: https://github.com/open-telemetry/opentelemetry-go +func WithContext(ctx context.Context, tp trace.TracerProvider) context.Context { + return context.WithValue(ctx, CtxKey{}, tp) +} + +// CtxTracerProvider retrieves an [OTEL TracerProvider] from a provided context (or returns the default one if missing). +// +// [OTEL TracerProvider]: https://github.com/open-telemetry/opentelemetry-go +func CtxTracerProvider(ctx context.Context) trace.TracerProvider { + if tp, ok := ctx.Value(CtxKey{}).(trace.TracerProvider); ok { + return tp + } else { + return otel.GetTracerProvider() + } +} diff --git a/trace/context_test.go b/trace/context_test.go new file mode 100644 index 0000000..f1f163c --- /dev/null +++ b/trace/context_test.go @@ -0,0 +1,31 @@ +package trace_test + +import ( + "context" + "testing" + + "github.com/ankorstore/yokai/trace" + "github.com/ankorstore/yokai/trace/tracetest" + "github.com/stretchr/testify/assert" + "go.opentelemetry.io/otel" +) + +func TestCtxTracerProviderWithDefaultTracerProvider(t *testing.T) { + t.Parallel() + + assert.Equal(t, otel.GetTracerProvider(), trace.CtxTracerProvider(context.Background())) +} + +func TestCtxTracerProviderWithCustomTracerProvider(t *testing.T) { + t.Parallel() + + exporter := tracetest.NewDefaultTestTraceExporter() + + tracerProvider, err := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSpanProcessor(trace.NewTestSpanProcessor(exporter)), + ) + assert.NoError(t, err) + + ctx := trace.WithContext(context.Background(), tracerProvider) + assert.Equal(t, tracerProvider, trace.CtxTracerProvider(ctx)) +} diff --git a/trace/enum.go b/trace/enum.go new file mode 100644 index 0000000..38a6530 --- /dev/null +++ b/trace/enum.go @@ -0,0 +1,93 @@ +package trace + +import "strings" + +// SpanProcessor is an enum for the supported span processors. +type SpanProcessor int + +const ( + NoopSpanProcessor SpanProcessor = iota + StdoutSpanProcessor + TestSpanProcessor + OtlpGrpcSpanProcessor +) + +// String returns a string representation of the [SpanProcessor]. +// +//nolint:exhaustive +func (p SpanProcessor) String() string { + switch p { + case StdoutSpanProcessor: + return Stdout + case TestSpanProcessor: + return Test + case OtlpGrpcSpanProcessor: + return OtlpGrpc + default: + return Noop + } +} + +// FetchSpanProcessor returns a [SpanProcessor] for a given value. +func FetchSpanProcessor(p string) SpanProcessor { + switch strings.ToLower(p) { + case Stdout: + return StdoutSpanProcessor + case Test: + return TestSpanProcessor + case OtlpGrpc: + return OtlpGrpcSpanProcessor + default: + return NoopSpanProcessor + } +} + +// Sampler is an enum for the supported samplers. +type Sampler int + +const ( + ParentBasedAlwaysOnSampler Sampler = iota + ParentBasedAlwaysOffSampler + ParentBasedTraceIdRatioSampler + AlwaysOnSampler + AlwaysOffSampler + TraceIdRatioSampler +) + +// String returns a string representation of the [Sampler]. +// +//nolint:exhaustive +func (s Sampler) String() string { + switch s { + case ParentBasedAlwaysOffSampler: + return ParentBasedAlwaysOff + case ParentBasedTraceIdRatioSampler: + return ParentBasedTraceIdRatio + case AlwaysOnSampler: + return AlwaysOn + case AlwaysOffSampler: + return AlwaysOff + case TraceIdRatioSampler: + return TraceIdRatio + default: + return ParentBasedAlwaysOn + } +} + +// FetchSampler returns a [Sampler] for a given value. +func FetchSampler(s string) Sampler { + switch strings.ToLower(s) { + case ParentBasedAlwaysOff: + return ParentBasedAlwaysOffSampler + case ParentBasedTraceIdRatio: + return ParentBasedTraceIdRatioSampler + case AlwaysOn: + return AlwaysOnSampler + case AlwaysOff: + return AlwaysOffSampler + case TraceIdRatio: + return TraceIdRatioSampler + default: + return ParentBasedAlwaysOnSampler + } +} diff --git a/trace/enum_test.go b/trace/enum_test.go new file mode 100644 index 0000000..48c4c1a --- /dev/null +++ b/trace/enum_test.go @@ -0,0 +1,84 @@ +package trace_test + +import ( + "testing" + + "github.com/ankorstore/yokai/trace" + "github.com/stretchr/testify/assert" +) + +func TestSpanProcessorAsString(t *testing.T) { + t.Parallel() + + tests := []struct { + processor trace.SpanProcessor + expected string + }{ + {trace.StdoutSpanProcessor, trace.Stdout}, + {trace.TestSpanProcessor, trace.Test}, + {trace.OtlpGrpcSpanProcessor, trace.OtlpGrpc}, + {trace.NoopSpanProcessor, trace.Noop}, + } + + for _, tt := range tests { + assert.Equal(t, tt.expected, tt.processor.String()) + } +} + +func TestFetchSpanProcessor(t *testing.T) { + t.Parallel() + + tests := []struct { + input string + expected trace.SpanProcessor + }{ + {trace.Stdout, trace.StdoutSpanProcessor}, + {trace.Test, trace.TestSpanProcessor}, + {trace.OtlpGrpc, trace.OtlpGrpcSpanProcessor}, + {"default", trace.NoopSpanProcessor}, + } + + for _, tt := range tests { + assert.Equal(t, tt.expected, trace.FetchSpanProcessor(tt.input)) + } +} + +func TestSamplerAsString(t *testing.T) { + t.Parallel() + + tests := []struct { + sampler trace.Sampler + expected string + }{ + {trace.ParentBasedAlwaysOffSampler, trace.ParentBasedAlwaysOff}, + {trace.ParentBasedTraceIdRatioSampler, trace.ParentBasedTraceIdRatio}, + {trace.AlwaysOnSampler, trace.AlwaysOn}, + {trace.AlwaysOffSampler, trace.AlwaysOff}, + {trace.TraceIdRatioSampler, trace.TraceIdRatio}, + {trace.ParentBasedAlwaysOnSampler, trace.ParentBasedAlwaysOn}, + } + + for _, tt := range tests { + assert.Equal(t, tt.expected, tt.sampler.String()) + } +} + +func TestFetchSampler(t *testing.T) { + t.Parallel() + + tests := []struct { + input string + expected trace.Sampler + }{ + {trace.ParentBasedAlwaysOff, trace.ParentBasedAlwaysOffSampler}, + {trace.ParentBasedTraceIdRatio, trace.ParentBasedTraceIdRatioSampler}, + {trace.AlwaysOn, trace.AlwaysOnSampler}, + {trace.AlwaysOff, trace.AlwaysOffSampler}, + {trace.TraceIdRatio, trace.TraceIdRatioSampler}, + {"default", trace.ParentBasedAlwaysOnSampler}, + } + + for _, tt := range tests { + assert.Equal(t, tt.expected, trace.FetchSampler(tt.input)) + } +} diff --git a/trace/factory.go b/trace/factory.go new file mode 100644 index 0000000..7945f0e --- /dev/null +++ b/trace/factory.go @@ -0,0 +1,70 @@ +package trace + +import ( + "go.opentelemetry.io/otel" + "go.opentelemetry.io/otel/propagation" + "go.opentelemetry.io/otel/sdk/trace" +) + +// TracerProviderFactory is the interface for [OTEL TracerProvider] factories. +// +// [OTEL TracerProvider]: https://github.com/open-telemetry/opentelemetry-go +type TracerProviderFactory interface { + Create(options ...TracerProviderOption) (*trace.TracerProvider, error) +} + +// DefaultTracerProviderFactory is the default [TracerProviderFactory] implementation. +type DefaultTracerProviderFactory struct{} + +// NewDefaultTracerProviderFactory returns a [DefaultTracerProviderFactory], implementing [TracerProviderFactory]. +func NewDefaultTracerProviderFactory() TracerProviderFactory { + return &DefaultTracerProviderFactory{} +} + +// Create returns a new [OTEL TracerProvider], and accepts a list of [TracerProviderOption]. +// +// For example: +// +// tp, _ := trace.NewDefaultTracerProviderFactory().Create() +// +// is equivalent to: +// tp, _ = trace.NewDefaultTracerProviderFactory().Create( +// trace.Global(true), // set the tracer provider as global +// trace.WithResource(resource.Default()), // use the default resource +// trace.WithSampler(trace.NewParentBasedAlwaysOnSampler()), // use parent based always on sampling +// trace.WithSpanProcessor(trace.NewNoopSpanProcessor()), // use noop processor (void trace spans) +// ) +// +// [OTEL TracerProvider]: https://github.com/open-telemetry/opentelemetry-go +func (f *DefaultTracerProviderFactory) Create(options ...TracerProviderOption) (*trace.TracerProvider, error) { + appliedOptions := DefaultTracerProviderOptions() + for _, opt := range options { + opt(&appliedOptions) + } + + tracerProvider := trace.NewTracerProvider( + trace.WithResource(appliedOptions.Resource), + trace.WithSampler(appliedOptions.Sampler), + ) + + if len(appliedOptions.SpanProcessors) == 0 { + tracerProvider.RegisterSpanProcessor(NewNoopSpanProcessor()) + } else { + for _, processor := range appliedOptions.SpanProcessors { + tracerProvider.RegisterSpanProcessor(processor) + } + } + + if appliedOptions.Global { + otel.SetTracerProvider(tracerProvider) + + otel.SetTextMapPropagator( + propagation.NewCompositeTextMapPropagator( + propagation.TraceContext{}, + propagation.Baggage{}, + ), + ) + } + + return tracerProvider, nil +} diff --git a/trace/factory_test.go b/trace/factory_test.go new file mode 100644 index 0000000..7c1a88b --- /dev/null +++ b/trace/factory_test.go @@ -0,0 +1,67 @@ +package trace_test + +import ( + "testing" + + "github.com/ankorstore/yokai/trace" + "github.com/stretchr/testify/assert" + "go.opentelemetry.io/otel" + "go.opentelemetry.io/otel/sdk/resource" + otelsdktrace "go.opentelemetry.io/otel/sdk/trace" +) + +var ( + testResource = resource.Empty() + testSampler = otelsdktrace.AlwaysSample() + testSpanProcessor = trace.NewNoopSpanProcessor() +) + +func TestDefaultTracerProviderFactory(t *testing.T) { + t.Parallel() + + factory := trace.NewDefaultTracerProviderFactory() + + assert.IsType(t, &trace.DefaultTracerProviderFactory{}, factory) + assert.Implements(t, (*trace.TracerProviderFactory)(nil), factory) +} + +func TestCreate(t *testing.T) { + factory := trace.NewDefaultTracerProviderFactory() + + tracerProvider, err := factory.Create( + trace.WithResource(testResource), + trace.WithSampler(testSampler), + trace.WithSpanProcessor(testSpanProcessor), + ) + + assert.NoError(t, err) + assert.IsType(t, &otelsdktrace.TracerProvider{}, tracerProvider) + assert.Equal(t, tracerProvider, otel.GetTracerProvider()) +} + +func TestCreateAsNotGlobal(t *testing.T) { + factory := trace.NewDefaultTracerProviderFactory() + + tracerProvider, err := factory.Create( + trace.Global(false), + trace.WithResource(testResource), + trace.WithSampler(testSampler), + trace.WithSpanProcessor(testSpanProcessor), + ) + + assert.NoError(t, err) + assert.IsType(t, &otelsdktrace.TracerProvider{}, tracerProvider) + assert.NotEqual(t, tracerProvider, otel.GetTracerProvider()) +} + +func TestCreateWithoutSpanProcessor(t *testing.T) { + factory := trace.NewDefaultTracerProviderFactory() + + tracerProvider, err := factory.Create( + trace.WithResource(testResource), + trace.WithSampler(testSampler), + ) + + assert.NoError(t, err) + assert.IsType(t, &otelsdktrace.TracerProvider{}, tracerProvider) +} diff --git a/trace/go.mod b/trace/go.mod new file mode 100644 index 0000000..c4928fa --- /dev/null +++ b/trace/go.mod @@ -0,0 +1,33 @@ +module github.com/ankorstore/yokai/trace + +go 1.20 + +require ( + github.com/stretchr/testify v1.8.4 + go.opentelemetry.io/otel v1.16.0 + go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.16.0 + go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.16.0 + go.opentelemetry.io/otel/sdk v1.16.0 + go.opentelemetry.io/otel/trace v1.16.0 + google.golang.org/grpc v1.56.2 +) + +require ( + github.com/cenkalti/backoff/v4 v4.2.1 // indirect + github.com/davecgh/go-spew v1.1.1 // indirect + github.com/go-logr/logr v1.2.4 // indirect + github.com/go-logr/stdr v1.2.2 // indirect + github.com/golang/protobuf v1.5.3 // indirect + github.com/grpc-ecosystem/grpc-gateway/v2 v2.7.0 // indirect + github.com/pmezard/go-difflib v1.0.0 // indirect + go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.16.0 // indirect + go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.16.0 // indirect + go.opentelemetry.io/otel/metric v1.16.0 // indirect + go.opentelemetry.io/proto/otlp v0.19.0 // indirect + golang.org/x/net v0.9.0 // indirect + golang.org/x/sys v0.8.0 // indirect + golang.org/x/text v0.9.0 // indirect + google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 // indirect + google.golang.org/protobuf v1.30.0 // indirect + gopkg.in/yaml.v3 v3.0.1 // indirect +) diff --git a/trace/go.sum b/trace/go.sum new file mode 100644 index 0000000..5a81776 --- /dev/null +++ b/trace/go.sum @@ -0,0 +1,453 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU= +cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU= +cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY= +cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc= +cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0= +cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To= +cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4= +cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M= +cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc= +cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKVk= +cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs= +cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc= +cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY= +cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o= +cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE= +cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc= +cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg= +cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc= +cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ= +cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE= +cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk= +cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I= +cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw= +cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA= +cloud.google.com/go/pubsub v1.3.1/go.mod h1:i+ucay31+CNRpDW4Lu78I4xXG+O1r/MAHgjpRVR+TSU= +cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw= +cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos= +cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk= +cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs= +cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0= +dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU= +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo= +github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU= +github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY= +github.com/cenkalti/backoff/v4 v4.2.1 h1:y4OZtCnogmCPw98Zjyt5a6+QwPLGkiQsYW5oUqylYbM= +github.com/cenkalti/backoff/v4 v4.2.1/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE= +github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= +github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc= +github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= +github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI= +github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI= +github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU= +github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= +github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc= +github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk= +github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XPnfI9Z40ddWsdw2W/uZgQLFXToKeRcDiI= +github.com/cncf/xds/go v0.0.0-20210312221358-fbca930ec8ed/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs= +github.com/cncf/xds/go v0.0.0-20210805033703-aa0b78936158/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs= +github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs= +github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs= +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= +github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= +github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= +github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98= +github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk= +github.com/envoyproxy/go-control-plane v0.9.9-0.20210512163311-63b5d3c536b0/go.mod h1:hliV/p42l8fGbc6Y9bQ70uLwIvmJyVE5k4iMKlh8wCQ= +github.com/envoyproxy/go-control-plane v0.9.10-0.20210907150352-cf90f659a021/go.mod h1:AFq3mo9L8Lqqiid3OhADV3RfLJnjiw63cSpi+fDTRC0= +github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c= +github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04= +github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU= +github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8= +github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8= +github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A= +github.com/go-logr/logr v1.2.4 h1:g01GSCwiDw2xSZfjJ2/T9M+S6pFdcNtFYsp+Y43HYDQ= +github.com/go-logr/logr v1.2.4/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A= +github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag= +github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE= +github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q= +github.com/golang/glog v1.0.0/go.mod h1:EWib/APOK0SL3dFbYqvxE3UYd8E6s1ouQ7iEp/0LWV4= +github.com/golang/glog v1.1.0 h1:/d3pCKDPWNnvIWe0vVUpNP32qc8U3PDVxySP/y360qE= +github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc= 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b/trace/option.go @@ -0,0 +1,63 @@ +package trace + +import ( + "go.opentelemetry.io/otel/sdk/resource" + "go.opentelemetry.io/otel/sdk/trace" +) + +// Options are options for the [TracerProviderFactory] implementations. +type Options struct { + Global bool + Resource *resource.Resource + Sampler trace.Sampler + SpanProcessors []trace.SpanProcessor +} + +// DefaultTracerProviderOptions are the default options used in the [TracerProviderFactory]. +func DefaultTracerProviderOptions() Options { + return Options{ + Global: true, + Resource: resource.Default(), + Sampler: NewParentBasedAlwaysOnSampler(), + SpanProcessors: []trace.SpanProcessor{}, + } +} + +// TracerProviderOption are functional options for the [TracerProviderFactory] implementations. +type TracerProviderOption func(o *Options) + +// Global is used to set the [OTEL TracerProvider] as global. +// +// [OTEL TracerProvider]: https://github.com/open-telemetry/opentelemetry-go +func Global(b bool) TracerProviderOption { + return func(o *Options) { + o.Global = b + } +} + +// WithResource is used to set the resource to use by the [OTEL TracerProvider]. +// +// [OTEL TracerProvider]: https://github.com/open-telemetry/opentelemetry-go +func WithResource(r *resource.Resource) TracerProviderOption { + return func(o *Options) { + o.Resource = r + } +} + +// WithSampler is used to set the sampler to use by the [OTEL TracerProvider]. +// +// [OTEL TracerProvider]: https://github.com/open-telemetry/opentelemetry-go +func WithSampler(s trace.Sampler) TracerProviderOption { + return func(o *Options) { + o.Sampler = s + } +} + +// WithSpanProcessor is used to set the span processor to use by the [OTEL TracerProvider]. +// +// [OTEL TracerProvider]: https://github.com/open-telemetry/opentelemetry-go +func WithSpanProcessor(spanProcessor trace.SpanProcessor) TracerProviderOption { + return func(o *Options) { + o.SpanProcessors = append(o.SpanProcessors, spanProcessor) + } +} diff --git a/trace/option_test.go b/trace/option_test.go new file mode 100644 index 0000000..88907bd --- /dev/null +++ b/trace/option_test.go @@ -0,0 +1,55 @@ +package trace_test + +import ( + "testing" + + "github.com/ankorstore/yokai/trace" + "github.com/ankorstore/yokai/trace/tracetest" + "github.com/stretchr/testify/assert" + "go.opentelemetry.io/otel/sdk/resource" + otelsdktrace "go.opentelemetry.io/otel/sdk/trace" +) + +func TestGlobal(t *testing.T) { + t.Parallel() + + var options trace.Options + + trace.Global(true)(&options) + assert.True(t, options.Global) +} + +func TestWithResource(t *testing.T) { + t.Parallel() + + var options trace.Options + + res := resource.Empty() + + trace.WithResource(res)(&options) + assert.Equal(t, res, options.Resource) +} + +func TestWithSampler(t *testing.T) { + t.Parallel() + + var options trace.Options + + sampler := otelsdktrace.NeverSample() + + trace.WithSampler(sampler)(&options) + assert.Equal(t, sampler, options.Sampler) +} + +func TestWithSpanProcessor(t *testing.T) { + t.Parallel() + + var options trace.Options + + p1 := trace.NewNoopSpanProcessor() + p2 := trace.NewTestSpanProcessor(tracetest.NewDefaultTestTraceExporter()) + + trace.WithSpanProcessor(p1)(&options) + trace.WithSpanProcessor(p2)(&options) + assert.Equal(t, []otelsdktrace.SpanProcessor{p1, p2}, options.SpanProcessors) +} diff --git a/trace/otlp.go b/trace/otlp.go new file mode 100644 index 0000000..3ef028a --- /dev/null +++ b/trace/otlp.go @@ -0,0 +1,29 @@ +package trace + +import ( + "context" + "time" + + "google.golang.org/grpc" + "google.golang.org/grpc/credentials/insecure" +) + +// DefaultOtlpGrpcTimeout is the default timeout in seconds for the OTLP gRPC connection. +const DefaultOtlpGrpcTimeout = 5 + +// NewOtlpGrpcClientConnection returns a gRPC connection, and accept a host and a list of [DialOption] +// +// [DialOption]: https://github.com/grpc/grpc-go +func NewOtlpGrpcClientConnection(ctx context.Context, host string, dialOptions ...grpc.DialOption) (*grpc.ClientConn, error) { + dialCtx, cancel := context.WithTimeout(ctx, DefaultOtlpGrpcTimeout*time.Second) + defer cancel() + + if len(dialOptions) == 0 { + dialOptions = []grpc.DialOption{ + grpc.WithTransportCredentials(insecure.NewCredentials()), + grpc.WithBlock(), + } + } + + return grpc.DialContext(dialCtx, host, dialOptions...) +} diff --git a/trace/otlp_test.go b/trace/otlp_test.go new file mode 100644 index 0000000..c1e701f --- /dev/null +++ b/trace/otlp_test.go @@ -0,0 +1,60 @@ +package trace_test + +import ( + "context" + "net" + "testing" + "time" + + "github.com/ankorstore/yokai/trace" + "github.com/stretchr/testify/assert" + "google.golang.org/grpc" + "google.golang.org/grpc/connectivity" + "google.golang.org/grpc/credentials/insecure" + "google.golang.org/grpc/test/bufconn" +) + +func TestNewOtlpGrpcInsecureConnectionSuccess(t *testing.T) { + t.Parallel() + + listener := bufconn.Listen(1) + grpcServer := grpc.NewServer() + defer grpcServer.GracefulStop() + + go func() { + if err := grpcServer.Serve(listener); err != nil { + t.Error(err) + } + }() + + bufDialer := func(context.Context, string) (net.Conn, error) { + return listener.Dial() + } + + conn, err := trace.NewOtlpGrpcClientConnection( + context.Background(), + "bufnet", + grpc.WithContextDialer(bufDialer), + grpc.WithTransportCredentials(insecure.NewCredentials()), + grpc.WithBlock(), + ) + assert.NoError(t, err) + + assert.Equal(t, connectivity.Ready, conn.GetState()) + + err = conn.Close() + assert.NoError(t, err) + + grpcServer.GracefulStop() +} + +func TestNewOtlpGrpcInsecureConnectionError(t *testing.T) { + t.Parallel() + + ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(1*time.Microsecond)) + defer cancel() + + _, err := trace.NewOtlpGrpcClientConnection(ctx, "https://example.com") + assert.Error(t, err) + assert.Contains(t, err.Error(), "context deadline exceeded") +} diff --git a/trace/processor.go b/trace/processor.go new file mode 100644 index 0000000..7d9bb67 --- /dev/null +++ b/trace/processor.go @@ -0,0 +1,54 @@ +package trace + +import ( + "context" + + "github.com/ankorstore/yokai/trace/tracetest" + "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc" + "go.opentelemetry.io/otel/exporters/stdout/stdouttrace" + "go.opentelemetry.io/otel/sdk/trace" + otelsdktracetest "go.opentelemetry.io/otel/sdk/trace/tracetest" + "google.golang.org/grpc" +) + +const ( + Stdout = "stdout" // processor to send trace spans to the standard output + OtlpGrpc = "otlp-grpc" // processor to send the trace spans via OTLP/gRPC + Test = "test" // processor to send the trace spans to a test buffer + Noop = "noop" // processor to void the trace spans +) + +// NewTestSpanProcessor returns a [OTEL SpanProcessor] using a sync [tracetest.TestTraceExporter]. +// +// [OTEL SpanProcessor]: https://github.com/open-telemetry/opentelemetry-go +func NewTestSpanProcessor(testTraceExporter tracetest.TestTraceExporter) trace.SpanProcessor { + return trace.NewSimpleSpanProcessor(testTraceExporter) +} + +// NewNoopSpanProcessor returns a [OTEL SpanProcessor] that voids trace spans via an async [otelsdktracetest.NoopExporter]. +// +// [OTEL SpanProcessor]: https://github.com/open-telemetry/opentelemetry-go +func NewNoopSpanProcessor() trace.SpanProcessor { + return trace.NewBatchSpanProcessor(otelsdktracetest.NewNoopExporter()) +} + +// NewTestSpanProcessor returns a [OTEL SpanProcessor] using an async [stdouttrace.Exporter]. +// +// [OTEL SpanProcessor]: https://github.com/open-telemetry/opentelemetry-go +func NewStdoutSpanProcessor(options ...stdouttrace.Option) trace.SpanProcessor { + exporter, _ := stdouttrace.New(options...) + + return trace.NewBatchSpanProcessor(exporter) +} + +// NewOtlpGrpcSpanProcessor returns a [OTEL SpanProcessor] using an async [otlptracegrpc.Exporter]. +// +// [OTEL SpanProcessor]: https://github.com/open-telemetry/opentelemetry-go +func NewOtlpGrpcSpanProcessor(ctx context.Context, conn *grpc.ClientConn) (trace.SpanProcessor, error) { + exporter, err := otlptracegrpc.New(ctx, otlptracegrpc.WithGRPCConn(conn)) + if err != nil { + return nil, err + } + + return trace.NewBatchSpanProcessor(exporter), nil +} diff --git a/trace/processor_test.go b/trace/processor_test.go new file mode 100644 index 0000000..b5e045f --- /dev/null +++ b/trace/processor_test.go @@ -0,0 +1,61 @@ +package trace_test + +import ( + "context" + "testing" + "time" + + "github.com/ankorstore/yokai/trace" + "github.com/ankorstore/yokai/trace/tracetest" + "github.com/stretchr/testify/assert" + otelsdktrace "go.opentelemetry.io/otel/sdk/trace" + "google.golang.org/grpc" +) + +func TestNewTestSpanProcessor(t *testing.T) { + t.Parallel() + + testExporter := tracetest.NewDefaultTestTraceExporter() + spanProcessor := trace.NewTestSpanProcessor(testExporter) + + assert.Implements(t, (*otelsdktrace.SpanProcessor)(nil), spanProcessor) +} + +func TestNewNoopSpanProcessor(t *testing.T) { + t.Parallel() + + spanProcessor := trace.NewNoopSpanProcessor() + + assert.Implements(t, (*otelsdktrace.SpanProcessor)(nil), spanProcessor) +} + +func TestNewStdoutSpanProcessor(t *testing.T) { + t.Parallel() + + spanProcessor := trace.NewStdoutSpanProcessor() + + assert.Implements(t, (*otelsdktrace.SpanProcessor)(nil), spanProcessor) +} + +func TestNewOtlpGrpcSpanProcessorSuccess(t *testing.T) { + t.Parallel() + + spanProcessor, err := trace.NewOtlpGrpcSpanProcessor(context.Background(), &grpc.ClientConn{}) + + assert.NoError(t, err) + assert.Implements(t, (*otelsdktrace.SpanProcessor)(nil), spanProcessor) +} + +func TestNewOtlpGrpcSpanProcessorFailure(t *testing.T) { + t.Parallel() + + ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(1*time.Microsecond)) + defer cancel() + + conn, _ := trace.NewOtlpGrpcClientConnection(ctx, "https://example.com") + + _, err := trace.NewOtlpGrpcSpanProcessor(ctx, conn) + + assert.Error(t, err) + assert.Contains(t, err.Error(), "context deadline exceeded") +} diff --git a/trace/sampler.go b/trace/sampler.go new file mode 100644 index 0000000..46ed84c --- /dev/null +++ b/trace/sampler.go @@ -0,0 +1,44 @@ +package trace + +import ( + otelsdktrace "go.opentelemetry.io/otel/sdk/trace" +) + +const ( + ParentBasedAlwaysOn = "parent-based-always-on" // parent based always on sampling + ParentBasedAlwaysOff = "parent-based-always-off" // parent based always off sampling + ParentBasedTraceIdRatio = "parent-based-trace-id-ratio" // parent based trace id ratio sampling + AlwaysOn = "always-on" // always on sampling + AlwaysOff = "always-off" // always off sampling + TraceIdRatio = "trace-id-ratio" // trace id ratio sampling +) + +// NewParentBasedAlwaysOnSampler returns a [otelsdktrace.Sampler] with parent based always on sampling. +func NewParentBasedAlwaysOnSampler() otelsdktrace.Sampler { + return otelsdktrace.ParentBased(otelsdktrace.AlwaysSample()) +} + +// NewParentBasedAlwaysOffSampler returns a [otelsdktrace.Sampler] with parent based always off sampling. +func NewParentBasedAlwaysOffSampler() otelsdktrace.Sampler { + return otelsdktrace.ParentBased(otelsdktrace.NeverSample()) +} + +// NewParentBasedTraceIdRatioSampler returns a [otelsdktrace.Sampler] with parent based trace id ratio sampling. +func NewParentBasedTraceIdRatioSampler(ratio float64) otelsdktrace.Sampler { + return otelsdktrace.ParentBased(otelsdktrace.TraceIDRatioBased(ratio)) +} + +// NewAlwaysOnSampler returns a [otelsdktrace.Sampler] with always on sampling. +func NewAlwaysOnSampler() otelsdktrace.Sampler { + return otelsdktrace.AlwaysSample() +} + +// NewAlwaysOffSampler returns a [otelsdktrace.Sampler] with always off sampling. +func NewAlwaysOffSampler() otelsdktrace.Sampler { + return otelsdktrace.NeverSample() +} + +// NewTraceIdRatioSampler returns a [otelsdktrace.Sampler] with trace id ratio sampling. +func NewTraceIdRatioSampler(ratio float64) otelsdktrace.Sampler { + return otelsdktrace.TraceIDRatioBased(ratio) +} diff --git a/trace/sampler_test.go b/trace/sampler_test.go new file mode 100644 index 0000000..155e4e3 --- /dev/null +++ b/trace/sampler_test.go @@ -0,0 +1,51 @@ +package trace_test + +import ( + "testing" + + "github.com/ankorstore/yokai/trace" + "github.com/stretchr/testify/assert" + otelsdktrace "go.opentelemetry.io/otel/sdk/trace" +) + +func TestNewParentBasedAlwaysOnSampler(t *testing.T) { + t.Parallel() + + sampler := trace.NewParentBasedAlwaysOnSampler() + assert.Equal(t, otelsdktrace.ParentBased(otelsdktrace.AlwaysSample()), sampler) +} + +func TestNewParentBasedAlwaysOffSampler(t *testing.T) { + t.Parallel() + + sampler := trace.NewParentBasedAlwaysOffSampler() + assert.Equal(t, otelsdktrace.ParentBased(otelsdktrace.NeverSample()), sampler) +} + +func TestNewParentBasedTraceIdRatioSampler(t *testing.T) { + t.Parallel() + + sampler := trace.NewParentBasedTraceIdRatioSampler(0.5) + assert.Equal(t, otelsdktrace.ParentBased(otelsdktrace.TraceIDRatioBased(0.5)), sampler) +} + +func TestNewAlwaysOnSampler(t *testing.T) { + t.Parallel() + + sampler := trace.NewAlwaysOnSampler() + assert.Equal(t, otelsdktrace.AlwaysSample(), sampler) +} + +func TestNewAlwaysOffSampler(t *testing.T) { + t.Parallel() + + sampler := trace.NewAlwaysOffSampler() + assert.Equal(t, otelsdktrace.NeverSample(), sampler) +} + +func TestNewTraceIdRatioSampler(t *testing.T) { + t.Parallel() + + sampler := trace.NewTraceIdRatioSampler(0.5) + assert.Equal(t, otelsdktrace.TraceIDRatioBased(0.5), sampler) +} diff --git a/trace/tracetest/assert.go b/trace/tracetest/assert.go new file mode 100644 index 0000000..5b064bc --- /dev/null +++ b/trace/tracetest/assert.go @@ -0,0 +1,59 @@ +package tracetest + +import ( + "testing" + + "go.opentelemetry.io/otel/attribute" +) + +// AssertHasTraceSpan allows to assert if a trace span exactly matching provided name and attributes can be found. +func AssertHasTraceSpan(tb testing.TB, exporter TestTraceExporter, expectedName string, expectedAttributes ...attribute.KeyValue) bool { + tb.Helper() + + if !exporter.HasSpan(expectedName, expectedAttributes...) { + tb.Errorf("cannot find trace span with matching name %s and matching attributes %+v", expectedName, expectedAttributes) + + return false + } + + return true +} + +// AssertHasNotTraceSpan allows to assert if a trace span exactly matching provided name and attributes cannot be found. +func AssertHasNotTraceSpan(tb testing.TB, exporter TestTraceExporter, expectedName string, expectedAttributes ...attribute.KeyValue) bool { + tb.Helper() + + if exporter.HasSpan(expectedName, expectedAttributes...) { + tb.Errorf("can find trace span with matching name %s and matching attributes %+v", expectedName, expectedAttributes) + + return false + } + + return true +} + +// AssertContainTraceSpan allows to assert if a trace span partially matching provided name and attributes can be found. +func AssertContainTraceSpan(tb testing.TB, exporter TestTraceExporter, expectedName string, expectedAttributes ...attribute.KeyValue) bool { + tb.Helper() + + if !exporter.ContainSpan(expectedName, expectedAttributes...) { + tb.Errorf("cannot find trace span with contained name %s and contained attributes %+v", expectedName, expectedAttributes) + + return false + } + + return true +} + +// AssertContainNotTraceSpan allows to assert if a trace span partially matching provided name and attributes cannot be found. +func AssertContainNotTraceSpan(tb testing.TB, exporter TestTraceExporter, expectedName string, expectedAttributes ...attribute.KeyValue) bool { + tb.Helper() + + if exporter.ContainSpan(expectedName, expectedAttributes...) { + tb.Errorf("can find trace span with contained name %s and contained attributes %+v", expectedName, expectedAttributes) + + return false + } + + return true +} diff --git a/trace/tracetest/assert_test.go b/trace/tracetest/assert_test.go new file mode 100644 index 0000000..88b47c2 --- /dev/null +++ b/trace/tracetest/assert_test.go @@ -0,0 +1,402 @@ +package tracetest_test + +import ( + "context" + "testing" + + "github.com/ankorstore/yokai/trace" + "github.com/ankorstore/yokai/trace/tracetest" + "github.com/stretchr/testify/assert" + "go.opentelemetry.io/otel/attribute" + oteltrace "go.opentelemetry.io/otel/trace" +) + +func TestAssertHasTraceSpan(t *testing.T) { + t.Parallel() + + exporter := tracetest.NewDefaultTestTraceExporter() + + tracerProvider, err := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSpanProcessor(trace.NewTestSpanProcessor(exporter)), + ) + assert.NoError(t, err) + + _, span := tracerProvider.Tracer("test").Start( + context.Background(), + "test span", + oteltrace.WithAttributes( + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 42), + ), + ) + span.End() + + mt := new(testing.T) + tracetest.AssertHasTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "string attribute value"), + ) + assert.False(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertHasTraceSpan( + mt, + exporter, + "test span", + attribute.Int("int attribute name", 42), + ) + assert.False(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertHasTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 42), + ) + assert.False(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertHasTraceSpan( + mt, + exporter, + "test span", + attribute.String("invalid attribute name", "invalid attribute value"), + attribute.Int("int attribute name", 42), + ) + assert.True(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertHasTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 24), + ) + assert.True(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertHasTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 42), + attribute.String("invalid attribute name", "invalid attribute value"), + ) + assert.True(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertHasTraceSpan( + mt, + exporter, + "invalid span", + ) + assert.True(t, mt.Failed()) +} + +func TestAssertHasNotTraceSpan(t *testing.T) { + t.Parallel() + + exporter := tracetest.NewDefaultTestTraceExporter() + + tracerProvider, err := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSpanProcessor(trace.NewTestSpanProcessor(exporter)), + ) + assert.NoError(t, err) + + _, span := tracerProvider.Tracer("test").Start( + context.Background(), + "test span", + oteltrace.WithAttributes( + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 42), + ), + ) + span.End() + + mt := new(testing.T) + tracetest.AssertHasNotTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "string attribute value"), + ) + assert.True(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertHasNotTraceSpan( + mt, + exporter, + "test span", + attribute.Int("int attribute name", 42), + ) + assert.True(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertHasNotTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 42), + ) + assert.True(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertHasNotTraceSpan( + mt, + exporter, + "test span", + attribute.String("invalid attribute name", "invalid attribute value"), + attribute.Int("int attribute name", 42), + ) + assert.False(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertHasNotTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 24), + ) + assert.False(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertHasNotTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 42), + attribute.String("invalid attribute name", "invalid attribute value"), + ) + assert.False(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertHasNotTraceSpan( + mt, + exporter, + "invalid span", + ) + assert.False(t, mt.Failed()) +} + +func TestAssertContainTraceSpan(t *testing.T) { + t.Parallel() + + exporter := tracetest.NewDefaultTestTraceExporter() + + tracerProvider, err := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSpanProcessor(trace.NewTestSpanProcessor(exporter)), + ) + assert.NoError(t, err) + + _, span := tracerProvider.Tracer("test").Start( + context.Background(), + "test span", + oteltrace.WithAttributes( + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 42), + ), + ) + span.End() + + mt := new(testing.T) + tracetest.AssertContainTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "string attribute value"), + ) + assert.False(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertContainTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "attribute value"), + ) + assert.False(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertContainTraceSpan( + mt, + exporter, + "test span", + attribute.Int("int attribute name", 42), + ) + assert.False(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertContainTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 42), + ) + assert.False(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertContainTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "attribute value"), + attribute.Int("int attribute name", 42), + ) + assert.False(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertContainTraceSpan( + mt, + exporter, + "test span", + attribute.String("invalid attribute name", "invalid attribute value"), + attribute.Int("int attribute name", 42), + ) + assert.True(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertContainTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 24), + ) + assert.True(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertContainTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 42), + attribute.String("invalid attribute name", "invalid attribute value"), + ) + assert.True(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertContainTraceSpan( + mt, + exporter, + "invalid span", + ) + assert.True(t, mt.Failed()) +} + +func TestAssertContainNotTraceSpan(t *testing.T) { + t.Parallel() + + exporter := tracetest.NewDefaultTestTraceExporter() + + tracerProvider, err := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSpanProcessor(trace.NewTestSpanProcessor(exporter)), + ) + assert.NoError(t, err) + + _, span := tracerProvider.Tracer("test").Start( + context.Background(), + "test span", + oteltrace.WithAttributes( + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 42), + ), + ) + span.End() + + mt := new(testing.T) + tracetest.AssertContainNotTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "string attribute value"), + ) + assert.True(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertContainNotTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "attribute value"), + ) + assert.True(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertContainNotTraceSpan( + mt, + exporter, + "test span", + attribute.Int("int attribute name", 42), + ) + assert.True(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertContainNotTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 42), + ) + assert.True(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertContainNotTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "attribute value"), + attribute.Int("int attribute name", 42), + ) + assert.True(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertContainNotTraceSpan( + mt, + exporter, + "test span", + attribute.String("invalid attribute name", "invalid attribute value"), + attribute.Int("int attribute name", 42), + ) + assert.False(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertContainNotTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 24), + ) + assert.False(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertContainNotTraceSpan( + mt, + exporter, + "test span", + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 42), + attribute.String("invalid attribute name", "invalid attribute value"), + ) + assert.False(t, mt.Failed()) + + mt = new(testing.T) + tracetest.AssertContainNotTraceSpan( + mt, + exporter, + "invalid span", + ) + assert.False(t, mt.Failed()) +} diff --git a/trace/tracetest/exporter.go b/trace/tracetest/exporter.go new file mode 100644 index 0000000..aaa5530 --- /dev/null +++ b/trace/tracetest/exporter.go @@ -0,0 +1,139 @@ +package tracetest + +import ( + "fmt" + "strings" + + "go.opentelemetry.io/otel/attribute" + "go.opentelemetry.io/otel/sdk/trace" + "go.opentelemetry.io/otel/sdk/trace/tracetest" +) + +// TestTraceExporter is the interface for test trace span exporters. +type TestTraceExporter interface { + trace.SpanExporter + Exporter() trace.SpanExporter + Reset() TestTraceExporter + Spans() tracetest.SpanStubs + Span(name string) (tracetest.SpanStub, error) + HasSpan(expectedName string, expectedAttributes ...attribute.KeyValue) bool + ContainSpan(expectedName string, expectedAttributes ...attribute.KeyValue) bool +} + +// DefaultTestTraceExporter is the default [TestTraceExporter] implementation. +type DefaultTestTraceExporter struct { + *tracetest.InMemoryExporter +} + +// NewDefaultTestTraceExporter returns a [DefaultTestTraceExporter], implementing [TestTraceExporter]. +func NewDefaultTestTraceExporter() TestTraceExporter { + return &DefaultTestTraceExporter{ + tracetest.NewInMemoryExporter(), + } +} + +// Exporter returns the in memory internal exporter. +func (e *DefaultTestTraceExporter) Exporter() trace.SpanExporter { + return e.InMemoryExporter +} + +// Reset resets the in memory internal exporter. +func (e *DefaultTestTraceExporter) Reset() TestTraceExporter { + e.InMemoryExporter.Reset() + + return e +} + +// Spans get the [tracetest.SpanStubs] from the in memory internal exporter. +func (e *DefaultTestTraceExporter) Spans() tracetest.SpanStubs { + return e.InMemoryExporter.GetSpans() +} + +// Span get a specific [tracetest.SpanStub] from the in memory internal exporter by name. +func (e *DefaultTestTraceExporter) Span(name string) (tracetest.SpanStub, error) { + for _, span := range e.InMemoryExporter.GetSpans() { + if span.Name == name { + return span, nil + } + } + + return tracetest.SpanStub{}, fmt.Errorf("span with name %s cannot be found", name) +} + +// HasSpan return true if a trace span from the in memory internal buffer is exactly matching provided name and attributes. +func (e *DefaultTestTraceExporter) HasSpan(expectedName string, expectedAttributes ...attribute.KeyValue) bool { + for _, span := range e.InMemoryExporter.GetSpans() { + if span.Name == expectedName { + if len(expectedAttributes) == 0 { + return true + } + + allMatch := true + for _, expectedAttribute := range expectedAttributes { + found := false + + for _, spanAttribute := range span.Attributes { + if spanAttribute.Key == expectedAttribute.Key { + found = true + + allMatch = allMatch && spanAttribute.Value == expectedAttribute.Value + } + } + + if !found { + return false + } + } + + if allMatch { + return true + } + } + } + + return false +} + +// ContainSpan return true if a trace span from the in memory internal buffer is partially matching provided name and attributes. +// +//nolint:cyclop,gocognit,exhaustive +func (e *DefaultTestTraceExporter) ContainSpan(expectedName string, expectedAttributes ...attribute.KeyValue) bool { + for _, span := range e.InMemoryExporter.GetSpans() { + if span.Name == expectedName { + if len(expectedAttributes) == 0 { + return true + } + + allMatch := true + for _, expectedAttribute := range expectedAttributes { + found := false + + for _, spanAttribute := range span.Attributes { + if spanAttribute.Key == expectedAttribute.Key { + found = true + + switch spanAttribute.Value.Type() { + case attribute.STRING: + allMatch = allMatch && strings.Contains( + spanAttribute.Value.AsString(), + expectedAttribute.Value.AsString(), + ) + default: + allMatch = allMatch && spanAttribute.Value == expectedAttribute.Value + } + } + } + + if !found { + return false + } + } + + if allMatch { + return true + } + } + } + + return false +} diff --git a/trace/tracetest/exporter_test.go b/trace/tracetest/exporter_test.go new file mode 100644 index 0000000..5b033e9 --- /dev/null +++ b/trace/tracetest/exporter_test.go @@ -0,0 +1,314 @@ +package tracetest_test + +import ( + "context" + "testing" + + "github.com/ankorstore/yokai/trace" + "github.com/ankorstore/yokai/trace/tracetest" + "github.com/stretchr/testify/assert" + "go.opentelemetry.io/otel/attribute" + oteltracetest "go.opentelemetry.io/otel/sdk/trace/tracetest" + oteltrace "go.opentelemetry.io/otel/trace" +) + +func TestNewDefaultTestTraceExporter(t *testing.T) { + t.Parallel() + + exporter := tracetest.NewDefaultTestTraceExporter() + + assert.IsType(t, &tracetest.DefaultTestTraceExporter{}, exporter) + assert.Implements(t, (*tracetest.TestTraceExporter)(nil), exporter) + + assert.IsType(t, &oteltracetest.InMemoryExporter{}, exporter.Exporter()) +} + +func TestLifecycle(t *testing.T) { + t.Parallel() + + exporter := tracetest.NewDefaultTestTraceExporter() + + tracerProvider, err := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSpanProcessor(trace.NewTestSpanProcessor(exporter)), + ) + assert.NoError(t, err) + + assert.Len(t, exporter.Spans().Snapshots(), 0) + + tracer := tracerProvider.Tracer("test") + + ctx, span := tracer.Start( + context.Background(), + "test span", + oteltrace.WithAttributes( + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 42), + ), + ) + span.End() + + _, span2 := tracer.Start( + ctx, + "test span without attributes", + ) + span2.End() + + assert.Len(t, exporter.Spans().Snapshots(), 2) + + exportedSpan, err := exporter.Span("test span") + assert.NoError(t, err) + assert.Equal(t, "test span", exportedSpan.Name) + + exportedSpan2, err := exporter.Span("test span without attributes") + assert.NoError(t, err) + assert.Equal(t, "test span without attributes", exportedSpan2.Name) + + _, err = exporter.Span("invalid") + assert.Error(t, err) + assert.Equal(t, "span with name invalid cannot be found", err.Error()) + + exporter.Reset() + assert.Len(t, exporter.Spans().Snapshots(), 0) +} + +func TestHasSpan(t *testing.T) { + t.Parallel() + + exporter := tracetest.NewDefaultTestTraceExporter() + + tracerProvider, err := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSpanProcessor(trace.NewTestSpanProcessor(exporter)), + ) + assert.NoError(t, err) + + tracer := tracerProvider.Tracer("test") + + ctx, span := tracer.Start( + context.Background(), + "test span", + oteltrace.WithAttributes( + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 42), + ), + ) + span.End() + + _, span2 := tracer.Start( + ctx, + "test span without attributes", + ) + span2.End() + + assert.True( + t, + exporter.HasSpan( + "test span", // valid + ), + ) + assert.True( + t, + exporter.HasSpan( + "test span", // valid + attribute.String("string attribute name", "string attribute value"), // valid + ), + ) + assert.True( + t, + exporter.HasSpan( + "test span", // valid + attribute.Int("int attribute name", 42), // valid + ), + ) + assert.True( + t, exporter.HasSpan( + "test span", // valid + attribute.String("string attribute name", "string attribute value"), // valid + attribute.Int("int attribute name", 42), // valid + ), + ) + assert.True( + t, + exporter.HasSpan( + "test span without attributes", // valid + ), + ) + + assert.False( + t, + exporter.HasSpan( + "test span", // valid + attribute.String("string attribute name", "invalid attribute value"), // invalid + ), + ) + assert.False( + t, + exporter.HasSpan( + "test span", // valid + attribute.String("invalid attribute name", "string attribute value"), // invalid + ), + ) + assert.False( + t, + exporter.HasSpan( + "test span", // valid + attribute.Int("int attribute name", 24), // invalid + ), + ) + assert.False( + t, + exporter.HasSpan( + "test span", // valid + attribute.Int("invalid attribute name", 42), // invalid + ), + ) + assert.False( + t, exporter.HasSpan( + "test span", // valid + attribute.String("string attribute name", "invalid attribute value"), // invalid + attribute.Int("int attribute name", 24), // invalid + ), + ) + assert.False( + t, exporter.HasSpan( + "test span", // valid + attribute.String("string attribute name", "string attribute value"), // valid + attribute.String("invalid attribute name", "invalid attribute value"), // invalid + attribute.Int("int attribute name", 42), // valid + ), + ) + assert.False( + t, + exporter.HasSpan( + "test span without attributes", // valid + attribute.String("invalid attribute name", "invalid attribute value"), // invalid + ), + ) +} + +func TestContainSpan(t *testing.T) { + t.Parallel() + + exporter := tracetest.NewDefaultTestTraceExporter() + + tracerProvider, err := trace.NewDefaultTracerProviderFactory().Create( + trace.WithSpanProcessor(trace.NewTestSpanProcessor(exporter)), + ) + assert.NoError(t, err) + + tracer := tracerProvider.Tracer("test") + + ctx, span := tracer.Start( + context.Background(), + "test span", + oteltrace.WithAttributes( + attribute.String("string attribute name", "string attribute value"), + attribute.Int("int attribute name", 42), + ), + ) + span.End() + + _, span2 := tracer.Start( + ctx, + "test span without attributes", + ) + span2.End() + + assert.True( + t, + exporter.ContainSpan( + "test span", // valid + ), + ) + assert.True( + t, + exporter.ContainSpan( + "test span", // valid + attribute.String("string attribute name", "string attribute value"), // valid + ), + ) + assert.True( + t, + exporter.ContainSpan( + "test span", // valid + attribute.String("string attribute name", "attribute"), // valid + ), + ) + assert.True( + t, + exporter.ContainSpan( + "test span", // valid + attribute.Int("int attribute name", 42), // valid + ), + ) + assert.True( + t, exporter.ContainSpan( + "test span", // valid + attribute.String("string attribute name", "string attribute value"), // valid + attribute.Int("int attribute name", 42), // valid + ), + ) + assert.True( + t, exporter.ContainSpan( + "test span", // valid + attribute.String("string attribute name", "attribute"), // valid + attribute.Int("int attribute name", 42), // valid + ), + ) + assert.True( + t, + exporter.ContainSpan( + "test span without attributes", // valid + ), + ) + + assert.False( + t, + exporter.ContainSpan( + "test span", // valid + attribute.String("string attribute name", "invalid attribute value"), // invalid + ), + ) + assert.False( + t, + exporter.ContainSpan( + "test span", // valid + attribute.String("invalid attribute name", "string attribute value"), // invalid + ), + ) + assert.False( + t, + exporter.ContainSpan( + "test span", // valid + attribute.Int("int attribute name", 24), // invalid + ), + ) + assert.False( + t, + exporter.ContainSpan( + "test span", // valid + attribute.Int("invalid attribute name", 42), // invalid + ), + ) + assert.False( + t, exporter.ContainSpan( + "test span", // valid + attribute.String("string attribute name", "invalid attribute value"), // invalid + attribute.Int("int attribute name", 24), // invalid + ), + ) + assert.False( + t, exporter.ContainSpan( + "test span", // valid + attribute.String("string attribute name", "attribute"), // valid + attribute.String("invalid attribute name", "invalid attribute value"), // invalid + attribute.Int("int attribute name", 42), // valid + ), + ) + assert.False( + t, + exporter.ContainSpan( + "test span without attributes", // valid + attribute.String("invalid attribute name", "invalid attribute value"), // invalid + ), + ) +}